ChanServ changed the topic of #asahi-re to: Asahi Linux: porting Linux to Apple Silicon macs | Hardware / boot process / firmware interface reverse engineering | WARNING: this channel (only) may contain binary reverse engineering discussion | RE policy: https://alx.sh/re (MANDATORY READ) | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Logs: https://alx.sh/l/asahi-re
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<ayumu-k>
Hi guys
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<dwlsalmeida>
Hey, I wonder how much progress there has been to reverse engineer the hardware codec units within M1?
<opticron>
I don't think it's been a high priority. Video Encode/Decode are marked TBA for all chips on the feature support page, but I don't know if there's been any captures from the MacOS side for people to look at posted on the wiki
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<dwlsalmeida>
Hmm, I have a macbook M1 and I do video codec accelerator stuff for a living here at Collabora, I wonder if I can help?
<dwlsalmeida>
If there's a process to dump the data sent to the codec hardware when running macos, I might try reverse engineering the register names, at least
<dwlsalmeida>
sorry, completely new to RE otherwise
<roxfan>
AFAIK you can run macOS under m1n1 hypervisor and log almost everything
<dwlsalmeida>
oh, so you don't even need a device?
<dwlsalmeida>
cool
<jannau>
dwlsalmeida: there has been some work. there a 4 different blocks: h264/h265/vp9 decoder, h264/h265/vp9 encoder, jpeg de/encoder, prores de/encoder